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NU 545 UNIT 5 | 2025-2026 LATEST UPDATED| REAL EXAM
QUESTIONS AND ANSWERS | 100% RATED CORRECT | 100% VERFIED
| ALREADY GRADED A+
Which statement is true regarding the pulmonary system? - (answer)The larynx connects the
upper and lower airways
Which statement is true regarding the lower airways? - (answer)The right and left main bronchi
enter the lungs at the hila.
What process describes the exchange of carbon dioxide (CO2) for oxygen? - (answer)Respiration
Which receptor monitors the pH, partial pressure of CO2 (PaCO2), and the partial pressure of
oxygen (PaO2) in arterial blood? - (answer)Central chemoreceptors
Which physiologic alteration is present in an individual with emphysema? - (answer)Increased
compliance
Which steps are involved in the process of gas exchange? (Select all that apply.) -
(answer)Ventilation, Diffusion, Perfusion
,2|Page
Which structures are considered part of the upper airway? (Select all that apply.) -
(answer)Nasopharynx, Oropharynx
Which structures are considered part of the acinus? (Select all that apply.) - (answer)Respiratory
bronchioles, Alveolar ducts, Alveoli
Which structures are major accessory muscles of respiration? (Select all that apply.) -
(answer)Diaphragm, External Intercostals
Which alterations involved with aging are considered normal? (Select all that apply.) -
(answer)Increased flow resistance, Alterations in gas exchange, Loss of recoil
The binding of oxygen to hemoglobin occurs in the lungs; the reverse process in which oxygen is
released from hemoglobin occurs in the? - (answer)Tissues
The mechanical movement of gas or air into and out of the lungs is known as ventilation.
Breathing is usually involuntary because changes in the rate and volume are adjusted
automatically by the nervous system to maintain normal gas exchange. The respiratory system in
the brain that becomes active when increased ventilatory effort is required is the? -
(answer)Dorsal respiratory group
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Which illness is a type of liquefactive necrosis? - (answer)Abscess
Which statement is true regarding bronchiolitis? - (answer)Respiratory distress develops within
24-72 hours
What is the appropriate term for inadequate alveolar ventilation in relation to metabolic
demands? - (answer)Hypoventilation
A person has respirations that are characterized by alternating periods of deep and shallow
breathing and apnea. What is the appropriate term for this breathing? - (answer)Cheyne-Stokes
Which is the most common cause of pulmonary edema? - (answer)Heart disease
What is the term used to describe a respiratory infection that results in pus in the pleural space? -
(answer)Emphyema
Which statement is true regarding acute respiratory distress syndrome (ARDS)? - (answer)ARDS
can trigger severe pulmonary edema
, 4|Page
Which statement is true regarding the pathophysiologic process of asthma? -
(answer)Inflammation results in airway hyperresponsiveness
Inflammation results in airway hyperresponsiveness - (answer)Air droplet
Which pathogen is commonly associated with a pneumonia that is acquired while in the hospital?
- (answer)Pseudomonas aeruginosa
Which term describes a hypersecretion of mucus and chronic productive cough that continues for
at least 3 months of the year for a minimum of 2 consecutive years? - (answer)Chronic bronchitis
Which are signs of severe dyspnea? (Select all that apply.) - (answer)Flaring of the nostrils,
Retraction of the intercostal spaces, Use of accessory muscles of respiration
Which statements are true regarding viral pneumonia? (Select all that apply.) - (answer)Viral
pneumonia is usually mild and self-limiting, it can set the stage for a secondary bacterial
infection
NU 545 UNIT 5 | 2025-2026 LATEST UPDATED| REAL EXAM
QUESTIONS AND ANSWERS | 100% RATED CORRECT | 100% VERFIED
| ALREADY GRADED A+
Which statement is true regarding the pulmonary system? - (answer)The larynx connects the
upper and lower airways
Which statement is true regarding the lower airways? - (answer)The right and left main bronchi
enter the lungs at the hila.
What process describes the exchange of carbon dioxide (CO2) for oxygen? - (answer)Respiration
Which receptor monitors the pH, partial pressure of CO2 (PaCO2), and the partial pressure of
oxygen (PaO2) in arterial blood? - (answer)Central chemoreceptors
Which physiologic alteration is present in an individual with emphysema? - (answer)Increased
compliance
Which steps are involved in the process of gas exchange? (Select all that apply.) -
(answer)Ventilation, Diffusion, Perfusion
,2|Page
Which structures are considered part of the upper airway? (Select all that apply.) -
(answer)Nasopharynx, Oropharynx
Which structures are considered part of the acinus? (Select all that apply.) - (answer)Respiratory
bronchioles, Alveolar ducts, Alveoli
Which structures are major accessory muscles of respiration? (Select all that apply.) -
(answer)Diaphragm, External Intercostals
Which alterations involved with aging are considered normal? (Select all that apply.) -
(answer)Increased flow resistance, Alterations in gas exchange, Loss of recoil
The binding of oxygen to hemoglobin occurs in the lungs; the reverse process in which oxygen is
released from hemoglobin occurs in the? - (answer)Tissues
The mechanical movement of gas or air into and out of the lungs is known as ventilation.
Breathing is usually involuntary because changes in the rate and volume are adjusted
automatically by the nervous system to maintain normal gas exchange. The respiratory system in
the brain that becomes active when increased ventilatory effort is required is the? -
(answer)Dorsal respiratory group
,3|Page
Which illness is a type of liquefactive necrosis? - (answer)Abscess
Which statement is true regarding bronchiolitis? - (answer)Respiratory distress develops within
24-72 hours
What is the appropriate term for inadequate alveolar ventilation in relation to metabolic
demands? - (answer)Hypoventilation
A person has respirations that are characterized by alternating periods of deep and shallow
breathing and apnea. What is the appropriate term for this breathing? - (answer)Cheyne-Stokes
Which is the most common cause of pulmonary edema? - (answer)Heart disease
What is the term used to describe a respiratory infection that results in pus in the pleural space? -
(answer)Emphyema
Which statement is true regarding acute respiratory distress syndrome (ARDS)? - (answer)ARDS
can trigger severe pulmonary edema
, 4|Page
Which statement is true regarding the pathophysiologic process of asthma? -
(answer)Inflammation results in airway hyperresponsiveness
Inflammation results in airway hyperresponsiveness - (answer)Air droplet
Which pathogen is commonly associated with a pneumonia that is acquired while in the hospital?
- (answer)Pseudomonas aeruginosa
Which term describes a hypersecretion of mucus and chronic productive cough that continues for
at least 3 months of the year for a minimum of 2 consecutive years? - (answer)Chronic bronchitis
Which are signs of severe dyspnea? (Select all that apply.) - (answer)Flaring of the nostrils,
Retraction of the intercostal spaces, Use of accessory muscles of respiration
Which statements are true regarding viral pneumonia? (Select all that apply.) - (answer)Viral
pneumonia is usually mild and self-limiting, it can set the stage for a secondary bacterial
infection
